For the information of all users reading this thread Doug's problem was resolved last week.

It seems that Doug had a very old version of Omnirig installed on his computer. As soon as he installed the latest version all the virtual and hardware com ports were displayed in Omnirig and it was able to communicate with the Eterlogic VSP Splitter.

I have now had WSKT-X with JTAlert running for several days using the Eterlogic VSP Splitter, Omnirig and Log4OM and it has all worked 100%, all QSO's were recorded faithfully in Log4OM and all programs and the rig synchronise perfectly.

I have written a new section for the user guide describing in detail the use of virtual serial ports and this will be included in the next release.

Not a problem really, I only have 940 or so contacts in my logbook so going through it wasn't really a problem, it passed the evening away nicely. I now have FLdigi working fine with Log4OM and I'm really impressed. All I want is for the frequency to display in WSJT-X. I will have a mess with it this morning.

Rather than start a new thread I thought it best to post this link here. New Beta version of WSJT-X coming soon. Apparently it will work better with Omnirig, should make WSJT-X integration with Omnirig & Log4OM a little easier.